@atlaskit/adf-schema/dist/es2019/utils/lab-to-lch.js

Shared package that contains the ADF-schema (json) and ProseMirror node/mark specs

export const labToLch = ({
  l,
  a,
  b
}) => {
  let h = (Math.atan2(b, a) * (180 / Math.PI) + 360) % 360;
  const c = Math.sqrt(Math.pow(a, 2) + Math.pow(b, 2));
  if (Math.round(c * 10000) === 0) {
    h = Number.NaN;
  }
  return {
    l,
    c,
    h
  };
};